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<meta property="article:modified_time" content="Mon Jul 29 2019 19:20:00 GMT+0800 (GMT+08:00)"><meta property="og:site_name" content="Kuboard"><meta property="og:title" content="安装 Kubernetes 单Master节点"><meta property="og:type" content="website"><meta property="og:url" content="/install/install-k8s.html"><meta name="twitter:title" content="安装 Kubernetes 单Master节点"><meta name="twitter:url" content="/install/install-k8s.html"><meta name="twitter:card" content="summary_large_image">
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<div id="app" data-server-rendered="true"><div class="theme-container" data-v-73c41bb9><header class="navbar"><div class="sidebar-button"><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" role="img" viewBox="0 0 448 512" class="icon"><path fill="currentColor" d="M436 124H12c-6.627 0-12-5.373-12-12V80c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12z"></path></svg></div> <a href="/" class="home-link router-link-active"><!----> <span class="site-name">Kuboard</span></a> <div class="links"><div class="search-box"><input aria-label="Search" autocomplete="off" spellcheck="false" value=""> <!----></div> <nav class="nav-links can-hide"><div class="nav-item"><a href="/overview/" class="nav-link">简介</a></div><div class="nav-item"><a href="/install/install-dashboard.html" class="nav-link">安装</a></div><div class="nav-item"><a href="/guide/" class="nav-link">使用</a></div><div class="nav-item"><a href="/micro-service/spring-cloud/" class="nav-link">微服务</a></div> <!----></nav></div></header> <div class="sidebar-mask"></div> <aside class="sidebar"><div data-v-73c41bb9><div style="text-align:center;margin-top:20px;" data-v-73c41bb9><div class="side-nav-item" style="margin-left:0;" data-v-73c41bb9><a href="/overview/" class="nav-link" data-v-73c41bb9>简介</a></div> <div class="side-nav-item" style="border-bottom:2px solid #0b85ff;" data-v-73c41bb9><a href="/install/install-dashboard" class="nav-link router-link-exact-active router-link-active" data-v-73c41bb9>安装</a></div> <div class="side-nav-item" data-v-73c41bb9><a href="/guide/" class="nav-link" data-v-73c41bb9>使用</a></div> <div class="side-nav-item" data-v-73c41bb9><a href="/micro-service/spring-cloud/" class="nav-link" data-v-73c41bb9>微服务</a></div></div></div> <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading open"><span>安装 Kubernetes</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/install/install-k8s.html" class="active sidebar-link">安装 Kubernetes 单Master节点</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header"><a href="/install/install-k8s.html#制作标准机镜像" class="sidebar-link">制作标准机镜像</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header"><a href="/install/install-k8s.html#安装docker" class="sidebar-link">安装docker</a></li><li class="sidebar-sub-header"><a href="/install/install-k8s.html#安装-nfs-utils" class="sidebar-link">安装 nfs-utils</a></li><li class="sidebar-sub-header"><a href="/install/install-k8s.html#k8s基本配置" class="sidebar-link">K8S基本配置</a></li></ul></li><li class="sidebar-sub-header"><a href="/install/install-k8s.html#初始化-master-节点" class="sidebar-link">初始化 master 节点</a></li><li class="sidebar-sub-header"><a href="/install/install-k8s.html#初始化-worker节点" class="sidebar-link">初始化 worker节点</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header"><a href="/install/install-k8s.html#获得-join命令参数" class="sidebar-link">获得 join命令参数</a></li><li class="sidebar-sub-header"><a href="/install/install-k8s.html#初始化worker" class="sidebar-link">初始化worker</a></li><li class="sidebar-sub-header"><a href="/install/install-k8s.html#检查初始化结果" class="sidebar-link">检查初始化结果</a></li></ul></li><li class="sidebar-sub-header"><a href="/install/install-k8s.html#移除-worker-节点" class="sidebar-link">移除 worker 节点</a></li><li class="sidebar-sub-header"><a href="/install/install-k8s.html#安装-ingress-controller" class="sidebar-link">安装 Ingress Controller</a></li><li class="sidebar-sub-header"><a href="/install/install-k8s.html#下一步" class="sidebar-link">下一步</a></li></ul></li><li><a href="/install/install-kubernetes.html" class="sidebar-link">安装 Kubernetes 高可用</a></li><li><a href="/install/install-kubectl.html" class="sidebar-link">从客户端电脑远程管理 Kubernetes</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>安装 Kuboard</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/install/install-dashboard.html" class="sidebar-link">安装 Kuboard</a></li><li><a href="/install/install-dashboard-upgrade.html" class="sidebar-link">升级 Kuboard</a></li></ul></section></li></ul> <div style="text-align: center; margin-top: 5vh;"><strong>在线体验</strong> <div><a target="_blank" href="http://demo.eip.work/#/login?isReadOnly=true&token=eyJhbGciOiJSUzI1NiIsImtpZCI6IiJ9.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.eYqN3FLIT6xs0-lm8AidZtaiuHeX70QTn9FhJglhEyh5dlyMU5lo8UtR-h1OY8sTSeYdYKJAS83-9SUObKQhp6XNmRgOYAfZblKUy4mvbGVQ3dn_qnzxYxt6zdGCwIY7E34eNNd9IjMF7G_Y4eJLWE7NvkSB1O8zbdn8En9rQXv_xJ9-ugCyr4CYB1lDGuZl3CIXgQ1FWcQdUBrxTT95tzcNTB0l6OUOGhRxOfw-RyIOST83GV5U0iVzxnD4sjgSaJefvCU-BmwXgpxAwRVhFyHEziXXa0CuZfBfJbmnQW308B4wocr4QDm6Nvmli1P3B6Yo9-HNF__d2hCwZEr7eg"><p><img src="/assets/img/image-20190723104717575.f44900d3.png" style="width: 226px; height: 127px;"></p></a></div> <p><strong><a href="https://github.com/shaohq/kuboard-issues/issues" target="_blank">提交 BUG</a></strong></p> <strong>在线提问</strong> <p><img src="/assets/img/kuboard_qq.45e78dbf.png"></p></div></aside> <main class="page"> <div class="theme-default-content content__default"><h1 id="安装-kubernetes-单master节点"><a href="#安装-kubernetes-单master节点" aria-hidden="true" class="header-anchor">#</a> 安装 Kubernetes 单Master节点</h1> <p>对于 Kubernetes 初学者，推荐在阿里云采购如下配置：</p> <ul><li>3台 2核4G 的ECS（突发性能实例 t5 ecs.t5-c1m2.large或同等配置，单台约 0.4元/小时，停机时不收费）</li> <li>Cent OS 7.6</li></ul> <p><a href="https://promotion.aliyun.com/ntms/yunparter/invite.html?userCode=obezo3pg" target="_blank" rel="noopener noreferrer">领取阿里云最高2000元红包<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a></p> <p>Kuboard 的 Live Demo 环境使用的是如下拓扑结构，本文档描述了如何在完成该 demo 环境的搭建。</p> <p>完成安装后，对应的软件版本为：</p> <ul><li>Kubernetes v1.15.0</li> <li>Docker 18.09.7</li></ul> <p><img src="/assets/img/image-20190726214032585.f5bc62e4.png" alt="image-20190726214032585"></p> <h2 id="制作标准机镜像"><a href="#制作标准机镜像" aria-hidden="true" class="header-anchor">#</a> 制作标准机镜像</h2> <p>通过使用标准机镜像，可以</p> <ul><li><strong>避免重复执行对测试机安装必要软件的过程</strong></li> <li><strong>以一种相对标准化的过程管理测试机的维护</strong></li></ul> <p>标准机镜像中预装了如下内容：</p> <ul><li>docker</li> <li>nfs-utils</li> <li>kubernetes images</li></ul> <div class="tip custom-block"><ul><li>您也可以不制作标准机镜像，而是在三台机器上都执行 <em><strong>制作标准机镜像</strong></em> 中的所有操作步骤</li></ul></div> <p><strong>标准机镜像的制作过程描述如下：</strong></p> <h3 id="安装docker"><a href="#安装docker" aria-hidden="true" class="header-anchor">#</a> 安装docker</h3> <p><strong>卸载旧版本</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
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<span class="token function">sudo</span> yum remove docker <span class="token punctuation">\</span>
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docker-client <span class="token punctuation">\</span>
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docker-client-latest <span class="token punctuation">\</span>
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docker-common <span class="token punctuation">\</span>
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docker-latest <span class="token punctuation">\</span>
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docker-latest-logrotate <span class="token punctuation">\</span>
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docker-logrotate <span class="token punctuation">\</span>
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docker-selinux <span class="token punctuation">\</span>
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docker-engine-selinux <span class="token punctuation">\</span>
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docker-engine
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</code></pre></div><p><strong>下载依赖包及安装包</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
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<span class="token function">wget</span> https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm
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<span class="token function">wget</span> https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-cli-18.09.7-3.el7.x86_64.rpm
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<span class="token function">wget</span> https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-18.09.7-3.el7.x86_64.rpm
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</code></pre></div><p><strong>安装</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
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<span class="token function">sudo</span> yum <span class="token function">install</span> -y containerd.io-1.2.6-3.3.el7.x86_64.rpm
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<span class="token function">sudo</span> yum <span class="token function">install</span> -y docker-ce-cli-18.09.7-3.el7.x86_64.rpm
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<span class="token function">sudo</span> yum <span class="token function">install</span> -y docker-ce-18.09.7-3.el7.x86_64.rpm
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<span class="token function">sudo</span> systemctl <span class="token builtin class-name">enable</span> docker
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</code></pre></div><p><strong>启动 docker 服务</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
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<span class="token function">sudo</span> systemctl start docker
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</code></pre></div><p><strong>检查 docker 版本</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
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docker version
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</code></pre></div><blockquote><p><strong>参考文档</strong></p> <p>https://docs.docker.com/install/linux/docker-ce/centos/</p> <p>https://docs.docker.com/install/linux/linux-postinstall/</p></blockquote> <h3 id="安装-nfs-utils"><a href="#安装-nfs-utils" aria-hidden="true" class="header-anchor">#</a> 安装 nfs-utils</h3> <p><strong>执行安装命令</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
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<span class="token function">sudo</span> yum <span class="token function">install</span> -y nfs-utils
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</code></pre></div><p>必须先安装 nfs-utils 才能挂载 nfs 网络存储</p> <h3 id="k8s基本配置"><a href="#k8s基本配置" aria-hidden="true" class="header-anchor">#</a> K8S基本配置</h3> <p><strong>配置K8S的yum源</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
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<span class="token function">cat</span> <span class="token operator"><<</span>EOF <span class="token operator">></span> /etc/yum.repos.d/kubernetes.repo
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<span class="token punctuation">[</span>kubernetes<span class="token punctuation">]</span>
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<span class="token assign-left variable">name</span><span class="token operator">=</span>Kubernetes
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<span class="token assign-left variable">baseurl</span><span class="token operator">=</span>http://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
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<span class="token assign-left variable">enabled</span><span class="token operator">=</span><span class="token number">1</span>
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<span class="token assign-left variable">gpgcheck</span><span class="token operator">=</span><span class="token number">0</span>
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<span class="token assign-left variable">repo_gpgcheck</span><span class="token operator">=</span><span class="token number">0</span>
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<span class="token assign-left variable">gpgkey</span><span class="token operator">=</span>http://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg
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http://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
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EOF
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</code></pre></div><p><strong>关闭 防火墙、SeLinux、swap</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
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systemctl stop firewalld
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systemctl disable firewalld
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setenforce <span class="token number">0</span>
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<span class="token function">sed</span> -i <span class="token string">"s/SELINUX=enforcing/SELINUX=disabled/g"</span> /etc/selinux/config
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swapoff -a
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<span class="token function">yes</span> <span class="token operator">|</span> <span class="token function">cp</span> /etc/fstab /etc/fstab_bak
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<span class="token function">cat</span> /etc/fstab_bak <span class="token operator">|</span><span class="token function">grep</span> -v swap <span class="token operator">></span> /etc/fstab
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</code></pre></div><p><strong>修改 /etc/sysctl.conf</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
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<span class="token function">vim</span> /etc/sysctl.conf
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</code></pre></div><p>向其中添加</p> <div class="language- extra-class"><pre class="language-text"><code>net.ipv4.ip_forward = 1
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net.bridge.bridge-nf-call-ip6tables = 1
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net.bridge.bridge-nf-call-iptables = 1
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</code></pre></div><p>如下图所示</p> <p><img src="/assets/img/image-20190715085036593.55559549.png" alt="image-20190715085036593" title=":size=600x445"></p> <p>执行命令以应用</p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
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sysctl -p
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</code></pre></div><p><strong>安装kubelet、kubeadm、kubectl</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
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yum <span class="token function">install</span> -y kubelet-1.15.0 kubeadm-1.15.0 kubectl-1.15.0
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</code></pre></div><p><strong>修改docker Cgroup Driver为systemd</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
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<span class="token function">vim</span> /usr/lib/systemd/system/docker.service
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</code></pre></div><p>向其中添加</p> <div class="language- extra-class"><pre class="language-text"><code>--exec-opt native.cgroupdriver=systemd
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</code></pre></div><p>如下图所示</p> <p><img src="/assets/img/image2019-07-15_09.01.21.0e0d34f2.png" alt="屏幕快照 2019-07-15 09.01.21" title=":size=1000x326"></p> <p>重启 docker</p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
|
||
systemctl daemon-reload
|
||
systemctl restart docker
|
||
</code></pre></div><p><strong>启动kubelet</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
|
||
systemctl <span class="token builtin class-name">enable</span> kubelet <span class="token operator">&&</span> systemctl start kubelet
|
||
</code></pre></div><p><strong>加载 kubernetes 镜像</strong></p> <p>由于k8s服务相关镜像在国外镜像源，国内无法访问</p> <p>执行以下命令添加docker k8s国内镜像源</p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
|
||
<span class="token function">curl</span> -sSL https://get.daocloud.io/daotools/set_mirror.sh <span class="token operator">|</span> <span class="token function">sh</span> -s http://f1361db2.m.daocloud.io
|
||
|
||
systemctl restart docker
|
||
</code></pre></div><p><strong>拉取k8s相关镜像</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
|
||
docker pull mirrorgooglecontainers/kube-apiserver:v1.15.0
|
||
docker pull mirrorgooglecontainers/kube-controller-manager:v1.15.0
|
||
docker pull mirrorgooglecontainers/kube-scheduler:v1.15.0
|
||
docker pull mirrorgooglecontainers/kube-proxy:v1.15.0
|
||
docker pull mirrorgooglecontainers/pause:3.1
|
||
docker pull mirrorgooglecontainers/etcd:3.3.10
|
||
docker pull coredns/coredns:1.3.1
|
||
</code></pre></div><p><strong>更改镜像名为k8s官网镜像</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 在 master 节点和 worker 节点都要执行</span>
|
||
docker tag d235b23c3570 k8s.gcr.io/kube-proxy:v1.15.0
|
||
docker tag 201c7a840312 k8s.gcr.io/kube-apiserver:v1.15.0
|
||
docker tag 2d3813851e87 k8s.gcr.io/kube-scheduler:v1.15.0
|
||
docker tag 8328bb49b652 k8s.gcr.io/kube-controller-manager:v1.15.0
|
||
docker tag da86e6ba6ca1 k8s.gcr.io/pause:3.1
|
||
docker tag eb516548c180 k8s.gcr.io/coredns:1.3.1
|
||
docker tag 2c4adeb21b4f k8s.gcr.io/etcd:3.3.10
|
||
</code></pre></div><p><strong>制作镜像</strong></p> <p>请参考阿里云基于ECS <a href="https://help.aliyun.com/document_detail/35109.html?spm=5176.2020520101.0.0.75fc4df5mtdFmV" target="_blank" rel="noopener noreferrer">制作虚拟机镜像<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a> 的文档</p> <h2 id="初始化-master-节点"><a href="#初始化-master-节点" aria-hidden="true" class="header-anchor">#</a> 初始化 master 节点</h2> <div class="tip custom-block"><p>以 root 身份在 demo-master-a-1 机器上执行</p></div> <p><strong>配置 apiserver.demo 的域名</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 只在 master 节点执行</span>
|
||
<span class="token builtin class-name">echo</span> <span class="token string">"x.x.x.x apiserver.demo"</span> <span class="token operator">>></span> /etc/hosts
|
||
</code></pre></div><div class="warning custom-block"><p>请替换其中的 x.x.x.x 为您的 demo-master-a-1 的实际 ip 地址</p></div> <p><strong>创建 ./kubeadm-config.yaml</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 只在 master 节点执行</span>
|
||
<span class="token function">vim</span> ./kubeadm-config.yaml
|
||
</code></pre></div><div class="language-yaml extra-class"><pre class="language-yaml"><code><span class="token key atrule">apiVersion</span><span class="token punctuation">:</span> kubeadm.k8s.io/v1beta1
|
||
<span class="token key atrule">kind</span><span class="token punctuation">:</span> ClusterConfiguration
|
||
<span class="token key atrule">kubernetesVersion</span><span class="token punctuation">:</span> v1.15.0
|
||
<span class="token key atrule">controlPlaneEndpoint</span><span class="token punctuation">:</span> <span class="token string">"apiserver.demo:6443"</span>
|
||
|
||
</code></pre></div><p><strong>初始化 apiserver</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 只在 master 节点执行</span>
|
||
kubeadm init --config<span class="token operator">=</span>kubeadm-config.yaml --upload-certs
|
||
</code></pre></div><p>执行结果如下图所示：</p> <p><img src="/assets/img/image-20190715101542756.5934c00e.png" alt="image-20190715101542756" title=":size=800x388"></p> <p><strong>初始化 root 用户的 kubectl 配置</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 只在 master 节点执行</span>
|
||
<span class="token function">rm</span> -rf /root/.kube/
|
||
<span class="token function">mkdir</span> /root/.kube/
|
||
<span class="token function">cp</span> -i /etc/kubernetes/admin.conf /root/.kube/config
|
||
</code></pre></div><p><strong>安装 calico</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 只在 master 节点执行</span>
|
||
kubectl apply -f https://docs.projectcalico.org/v3.6/getting-started/kubernetes/installation/hosted/kubernetes-datastore/calico-networking/1.7/calico.yaml
|
||
</code></pre></div><blockquote><p>安装calico， 请参考https://docs.projectcalico.org/v3.6/getting-started/kubernetes/</p></blockquote> <p><strong>等待calico安装就绪：</strong></p> <p>执行如下命令，等待 3-10 分钟，直到所有的容器组处于 Running 状态</p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 只在 master 节点执行</span>
|
||
<span class="token function">watch</span> kubectl get pod -n kube-system
|
||
</code></pre></div><p><strong>检查 master 初始化结果</strong></p> <p>在 master 节点 demo-master-a-1 上执行</p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 只在 master 节点执行</span>
|
||
kubectl get nodes
|
||
</code></pre></div><h2 id="初始化-worker节点"><a href="#初始化-worker节点" aria-hidden="true" class="header-anchor">#</a> 初始化 worker节点</h2> <h3 id="获得-join命令参数"><a href="#获得-join命令参数" aria-hidden="true" class="header-anchor">#</a> 获得 join命令参数</h3> <p><strong>在 master 节点 demo-master-a-1 节点执行</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 只在 master 节点执行</span>
|
||
kubeadm token create --print-join-command
|
||
</code></pre></div><p>可获取kubeadm join 命令及参数，如下所示</p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># kubeadm token create 命令的输出</span>
|
||
kubeadm <span class="token function">join</span> apiserver.demo:6443 --token mpfjma.4vjjg8flqihor4vt --discovery-token-ca-cert-hash sha256:6f7a8e40a810323672de5eee6f4d19aa2dbdb38411845a1bf5dd63485c43d303
|
||
</code></pre></div><h3 id="初始化worker"><a href="#初始化worker" aria-hidden="true" class="header-anchor">#</a> 初始化worker</h3> <p><strong>针对所有的 worker 节点执行</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 只在 worker 节点执行</span>
|
||
<span class="token builtin class-name">echo</span> <span class="token string">"x.x.x.x apiserver.demo"</span> <span class="token operator">>></span> /etc/hosts
|
||
kubeadm <span class="token function">join</span> apiserver.demo:6443 --token mpfjma.4vjjg8flqihor4vt --discovery-token-ca-cert-hash sha256:6f7a8e40a810323672de5eee6f4d19aa2dbdb38411845a1bf5dd63485c43d303
|
||
</code></pre></div><div class="tip custom-block"><ul><li>将 x.x.x.x 替换为 demo-master-a-1 的实际 ip</li> <li>将 kubeadm join 命令后的参数替换为上一个步骤中实际从 demo-master-a-1 节点获得的参数</li></ul></div> <h3 id="检查初始化结果"><a href="#检查初始化结果" aria-hidden="true" class="header-anchor">#</a> 检查初始化结果</h3> <p>在 master 节点 demo-master-a-1 上执行</p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 只在 master 节点执行</span>
|
||
kubectl get nodes
|
||
</code></pre></div><p><img src="/assets/img/image-20190715193838012.eca23618.png" alt="image-20190715193838012"></p> <h2 id="移除-worker-节点"><a href="#移除-worker-节点" aria-hidden="true" class="header-anchor">#</a> 移除 worker 节点</h2> <div class="warning custom-block"><p>正常情况下，您无需移除 worker 节点，如果添加到集群出错，您可以移除 worker 节点，再重新尝试添加</p></div> <p>在准备移除的 worker 节点上执行</p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 只在 worker 节点执行</span>
|
||
kubeadm reset
|
||
</code></pre></div><p>在 master 节点 demo-master-a-1 上执行</p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 只在 master 节点执行</span>
|
||
kubectl delete node demo-worker-x-x
|
||
</code></pre></div><div class="tip custom-block"><ul><li>将 demo-worker-x-x 替换为要移除的 worker 节点的名字</li> <li>worker 节点的名字可以通过在节点 demo-master-a-1 上执行 kubectl get nodes 命令获得</li></ul></div> <h2 id="安装-ingress-controller"><a href="#安装-ingress-controller" aria-hidden="true" class="header-anchor">#</a> 安装 Ingress Controller</h2> <blockquote><p>Ingress官方文档：https://kubernetes.io/docs/concepts/services-networking/ingress/</p> <p>Ingress Controllers官网介绍：https://kubernetes.io/docs/concepts/services-networking/ingress-controllers/</p> <p>本文中使用如下部署方式：https://kubernetes.github.io/ingress-nginx/deploy/baremetal/#using-a-self-provisioned-edge</p> <p>kubernetes支持多种Ingress Controllers，本文推荐使用 https://github.com/nginxinc/kubernetes-ingress</p></blockquote> <p><strong>在 demo-master-a-1 上执行</strong></p> <div class="language-sh extra-class"><pre class="language-sh"><code><span class="token comment"># 只在 master 节点执行</span>
|
||
kubectl apply -f https://raw.githubusercontent.com/eip-work/eip-monitor-repository/master/dashboard/nginx-ingress.yaml
|
||
</code></pre></div><p><strong>配置域名解析</strong></p> <p>将域名 *.demo.yourdomain.com 解析到 demo-worker-a-2 的 IP 地址 z.z.z.z （也可以是 demo-worker-a-1 的地址 y.y.y.y）</p> <div class="tip custom-block"><p>由于需要申请域名，过程会比较繁琐，有如下两种替代方案：</p> <ul><li>在您的客户端机器（访问部署在K8S上的 web 应用的浏览器所在的机器）设置 hosts 配置；</li> <li>暂时放弃域名的配置，临时使用 NodePort 或者 <code>kubectl port-forward</code> 的方式访问部署在 K8S 上的 web 应用</li></ul></div> <p><strong>验证配置</strong></p> <p>在浏览器访问 a.demo.yourdomain.com，将得到 404 NotFound 错误页面</p> <h2 id="下一步"><a href="#下一步" aria-hidden="true" class="header-anchor">#</a> 下一步</h2> <p>🎉 🎉 🎉</p> <p>您已经完成了 Kubernetes 集群的安装，下一步请：</p> <p><a href="/install/install-dashboard">安装 Kuboard</a></p></div> <footer class="page-edit"><div class="edit-link"><a href="https://github.com/eip-work/kuboard-press/edit/master/install/install-k8s.md" target="_blank" rel="noopener noreferrer">帮助我们改善此页面！</a> <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></div> <div class="last-updated"><span class="prefix">更新时间: </span> <span class="time">2019-07-29 19:20:00</span></div></footer> <div class="page-nav"><p class="inner"><!----> <span class="next"><a href="/install/install-kubernetes.html">
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